Current conditions at
San Marcos, San Marcos Municipal Airport (KHYI)
Lat: 29.89°NLon: 97.86°WElev: 597ft.
Fair
93°F
34°C
| Humidity | 47% |
| Wind Speed | E 7 mph |
| Barometer | 29.99 in (1014.9 mb) |
| Dewpoint | 70°F (21°C) |
| Visibility | 10.00 mi |
| Heat Index | 99°F (37°C) |
| Last update | 23 Sep 5:56 pm CDT |
Extended Forecast for
Lockhart TX
Tonight
Low: 74 °F
Slight Chance
T-storms then
Partly CloudyThursday

High: 99 °F
Hot
Thursday Night

Low: 73 °F
Mostly Cloudy
Friday

High: 98 °F
Mostly Sunny
Friday Night

Low: 72 °F
Partly Cloudy
Saturday

High: 97 °F
Partly Sunny
Saturday Night

Low: 73 °F
Mostly Cloudy
Sunday

High: 98 °F
Mostly Sunny
Sunday Night

Low: 73 °F
Partly Cloudy
Detailed Forecast
Tonight
A 20 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 74. East southeast wind 5 to 10 mph becoming light and variable in the evening.
Thursday
Mostly sunny and hot, with a high near 99. Heat index values as high as 103. Light and variable wind becoming east 5 to 10 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 73. East wind 5 to 10 mph becoming light and variable in the evening.
Friday
Mostly sunny, with a high near 98. Calm wind becoming east around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 72. East wind around 5 mph becoming calm after midnight.
Saturday
Partly sunny, with a high near 97. Calm wind becoming south southeast around 5 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 73. Southeast wind around 5 mph.
Sunday
Mostly sunny, with a high near 98. Calm wind becoming south southwest around 5 mph.
Sunday Night
Partly cloudy, with a low around 73. South southeast wind around 5 mph.
Monday
Mostly sunny, with a high near 97.
Monday Night
Partly cloudy, with a low around 73.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 96.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Lockhart TX
29.88°N 97.68°W (Elev. 525 ft)
29.88°N 97.68°W (Elev. 525 ft)
5:32 pm CDT Sep 23, 2026
6pm CDT Sep 23, 2026-6pm CDT Sep 30, 2026


